EP2892063A4 - Production method for rare earth permanent magnet - Google Patents

Production method for rare earth permanent magnet

Info

Publication number
EP2892063A4
EP2892063A4 EP13832170.8A EP13832170A EP2892063A4 EP 2892063 A4 EP2892063 A4 EP 2892063A4 EP 13832170 A EP13832170 A EP 13832170A EP 2892063 A4 EP2892063 A4 EP 2892063A4
Authority
EP
European Patent Office
Prior art keywords
permanent magnet
production method
rare earth
earth permanent
rare
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP13832170.8A
Other languages
German (de)
French (fr)
Other versions
EP2892063A1 (en
EP2892063B1 (en
Inventor
Yoshifumi Nagasaki
Masanobu Shimao
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shin Etsu Chemical Co Ltd
Original Assignee
Shin Etsu Chemical Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shin Etsu Chemical Co Ltd filed Critical Shin Etsu Chemical Co Ltd
Publication of EP2892063A1 publication Critical patent/EP2892063A1/en
Publication of EP2892063A4 publication Critical patent/EP2892063A4/en
Application granted granted Critical
Publication of EP2892063B1 publication Critical patent/EP2892063B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D7/00—Electroplating characterised by the article coated
    • C25D7/001—Magnets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/24—After-treatment of workpieces or articles
    • C—CHEMISTRY; METALLURGY
    • C21—METALLURGY OF IRON
    • C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
    • C21D1/00—General methods or devices for heat treatment, e.g. annealing, hardening, quenching or tempering
    • C21D1/26—Methods of annealing
    • C21D1/28—Normalising
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/002—Ferrous alloys, e.g. steel alloys containing In, Mg, or other elements not provided for in one single group C22C38/001 - C22C38/60
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/005—Ferrous alloys, e.g. steel alloys containing rare earths, i.e. Sc, Y, Lanthanides
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/02—Ferrous alloys, e.g. steel alloys containing silicon
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/06—Ferrous alloys, e.g. steel alloys containing aluminium
    • C—CHEMISTRY; METALLURGY
    • C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
    • C22C—ALLOYS
    • C22C38/00—Ferrous alloys, e.g. steel alloys
    • C22C38/14—Ferrous alloys, e.g. steel alloys containing titanium or zirconium
    • C—CHEMISTRY; METALLURGY
    • C25—ELECTROLYTIC OR ELECTROPHORETIC PROCESSES; APPARATUS THEREFOR
    • C25D—PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING; APPARATUS THEREFOR
    • C25D3/00—Electroplating: Baths therefor
    • C25D3/02—Electroplating: Baths therefor from solutions
    • C25D3/56—Electroplating: Baths therefor from solutions of alloys
    • C25D3/562—Electroplating: Baths therefor from solutions of alloys containing more than 50% by weight of iron or nickel or cobalt
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
    • H01F1/047—Alloys characterised by their composition
    • H01F1/053—Alloys characterised by their composition containing rare earth metals
    • H01F1/0536—Alloys characterised by their composition containing rare earth metals sintered
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
    • H01F1/047—Alloys characterised by their composition
    • H01F1/053—Alloys characterised by their composition containing rare earth metals
    • H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
    • H01F41/02—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets
    • H01F41/0253—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets
    • H01F41/0293—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties for manufacturing cores, coils, or magnets for manufacturing permanent magnets diffusion of rare earth elements, e.g. Tb, Dy or Ho, into permanent magnets
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/24—After-treatment of workpieces or articles
    • B22F2003/241—Chemical after-treatment on the surface
    • B22F2003/242—Coating
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B22—CASTING; POWDER METALLURGY
    • B22F—WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER; APPARATUS OR DEVICES SPECIALLY ADAPTED FOR METALLIC POWDER
    • B22F3/00—Manufacture of workpieces or articles from metallic powder characterised by the manner of compacting or sintering; Apparatus specially adapted therefor ; Presses and furnaces
    • B22F3/24—After-treatment of workpieces or articles
    • B22F2003/248—Thermal after-treatment
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F1/00—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties
    • H01F1/01—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials
    • H01F1/03—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity
    • H01F1/032—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials
    • H01F1/04—Magnets or magnetic bodies characterised by the magnetic materials therefor; Selection of materials for their magnetic properties of inorganic materials characterised by their coercivity of hard-magnetic materials metals or alloys
    • H01F1/047—Alloys characterised by their composition
    • H01F1/053—Alloys characterised by their composition containing rare earth metals
    • H01F1/055—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5
    • H01F1/057—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B
    • H01F1/0571—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes
    • H01F1/0575—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together
    • H01F1/0577—Alloys characterised by their composition containing rare earth metals and magnetic transition metals, e.g. SmCo5 and IIIa elements, e.g. Nd2Fe14B in the form of particles, e.g. rapid quenched powders or ribbon flakes pressed, sintered or bonded together sintered
EP13832170.8A 2012-08-31 2013-08-30 Production method for rare earth permanent magnet Active EP2892063B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2012191547 2012-08-31
PCT/JP2013/073324 WO2014034849A1 (en) 2012-08-31 2013-08-30 Production method for rare earth permanent magnet

Publications (3)

Publication Number Publication Date
EP2892063A1 EP2892063A1 (en) 2015-07-08
EP2892063A4 true EP2892063A4 (en) 2016-04-20
EP2892063B1 EP2892063B1 (en) 2018-08-15

Family

ID=50183654

Family Applications (1)

Application Number Title Priority Date Filing Date
EP13832170.8A Active EP2892063B1 (en) 2012-08-31 2013-08-30 Production method for rare earth permanent magnet

Country Status (10)

Country Link
US (1) US10138564B2 (en)
EP (1) EP2892063B1 (en)
JP (1) JP6107545B2 (en)
KR (1) KR102137726B1 (en)
CN (1) CN104584156B (en)
BR (1) BR112015004500A2 (en)
MY (1) MY172195A (en)
PH (1) PH12015500446B1 (en)
TW (1) TWI569294B (en)
WO (1) WO2014034849A1 (en)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2892064B1 (en) * 2012-08-31 2017-09-27 Shin-Etsu Chemical Co., Ltd. Production method for rare earth permanent magnet
EP2892063B1 (en) 2012-08-31 2018-08-15 Shin-Etsu Chemical Co., Ltd. Production method for rare earth permanent magnet
US10179955B2 (en) * 2012-08-31 2019-01-15 Shin-Etsu Chemical Co., Ltd. Production method for rare earth permanent magnet
JP6191497B2 (en) 2014-02-19 2017-09-06 信越化学工業株式会社 Electrodeposition apparatus and method for producing rare earth permanent magnet
JP6090589B2 (en) 2014-02-19 2017-03-08 信越化学工業株式会社 Rare earth permanent magnet manufacturing method
WO2016093174A1 (en) * 2014-12-12 2016-06-16 日立金属株式会社 Production method for r-t-b-based sintered magnet
CN106158347B (en) * 2016-08-31 2017-10-17 烟台正海磁性材料股份有限公司 A kind of method for preparing R Fe B class sintered magnets
CN108109833A (en) * 2017-12-20 2018-06-01 赣州新瑞迪奥磁性材料有限公司 A kind of method that high-performance rare-earth permanent-magnetic body is produced by grain boundary decision method

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007053351A (en) * 2005-07-22 2007-03-01 Shin Etsu Chem Co Ltd Rare earth permanent magnet, its manufacturing method, and permanent magnet rotary machine
EP2894642A1 (en) * 2012-08-31 2015-07-15 Shin-Etsu Chemical Co., Ltd. Production method for rare earth permanent magnet

Family Cites Families (47)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4210507A (en) 1978-09-18 1980-07-01 Aluminum Company Of America Electrocoating flow control electrode and method
US4280882A (en) 1979-11-14 1981-07-28 Bunker Ramo Corporation Method for electroplating selected areas of article and articles plated thereby
JPS636808A (en) 1986-06-26 1988-01-12 Shin Etsu Chem Co Ltd Rare earth permanent magnet
JPH0283905A (en) 1988-09-20 1990-03-26 Sumitomo Special Metals Co Ltd Corrosion-resistant permanent magnet and manufacture thereof
JPH0645913B2 (en) * 1989-05-25 1994-06-15 石原薬品株式会社 Rare earth metal plating solution
JP3143156B2 (en) 1991-07-12 2001-03-07 信越化学工業株式会社 Manufacturing method of rare earth permanent magnet
JPH0531807A (en) 1991-07-31 1993-02-09 Central Glass Co Ltd Sticking structure and method of protective film
JPH10311913A (en) 1997-05-13 1998-11-24 Seiko Epson Corp Device for manufacturing color filter
JP4156086B2 (en) 1998-08-07 2008-09-24 大日本印刷株式会社 Electrodeposition processing equipment
US6261426B1 (en) 1999-01-22 2001-07-17 International Business Machines Corporation Method and apparatus for enhancing the uniformity of electrodeposition or electroetching
US7264698B2 (en) 1999-04-13 2007-09-04 Semitool, Inc. Apparatus and methods for electrochemical processing of microelectronic workpieces
WO2004020704A1 (en) 2001-08-31 2004-03-11 Semitool, Inc. Apparatus and method for deposition of an electrophoretic emulsion
JP3477469B1 (en) 2002-10-08 2003-12-10 東京エレクトロン株式会社 Liquid processing apparatus and liquid processing method
KR20050056276A (en) 2002-11-05 2005-06-14 스테판 볼츠 Method for producing fully ceramic tooth elements having a pre-determined spatial form by means of electrophoresis
JP4198556B2 (en) 2003-07-10 2008-12-17 株式会社表面処理システム Electrodeposition coating apparatus and electrodeposition coating method
US7947161B2 (en) 2004-03-19 2011-05-24 Faraday Technology, Inc. Method of operating an electroplating cell with hydrodynamics facilitating more uniform deposition on a workpiece with through holes
TWI291713B (en) * 2004-04-13 2007-12-21 Applied Materials Inc Process chamber component having electroplated yttrium containing coating
RU2367045C2 (en) 2004-10-19 2009-09-10 Син-Эцу Кемикал Ко., Лтд. Production of material of rare earth permanent magnet
TWI302712B (en) * 2004-12-16 2008-11-01 Japan Science & Tech Agency Nd-fe-b base magnet including modified grain boundaries and method for manufacturing the same
JP4702547B2 (en) 2005-03-23 2011-06-15 信越化学工業株式会社 Functionally graded rare earth permanent magnet
US7559996B2 (en) 2005-07-22 2009-07-14 Shin-Etsu Chemical Co., Ltd. Rare earth permanent magnet, making method, and permanent magnet rotary machine
JP4656323B2 (en) * 2006-04-14 2011-03-23 信越化学工業株式会社 Method for producing rare earth permanent magnet material
JP4753030B2 (en) * 2006-04-14 2011-08-17 信越化学工業株式会社 Method for producing rare earth permanent magnet material
JP4765747B2 (en) * 2006-04-19 2011-09-07 日立金属株式会社 Method for producing R-Fe-B rare earth sintered magnet
JP4742966B2 (en) * 2006-04-19 2011-08-10 日立金属株式会社 Method for producing R-Fe-B rare earth sintered magnet
JP4775566B2 (en) 2006-05-12 2011-09-21 信越化学工業株式会社 Rare earth permanent magnet, method of manufacturing the same, and rotating machine
JP2007313403A (en) * 2006-05-24 2007-12-06 Nippon Paint Co Ltd Method for forming coating film
JP4737431B2 (en) 2006-08-30 2011-08-03 信越化学工業株式会社 Permanent magnet rotating machine
US8172989B2 (en) 2007-11-26 2012-05-08 Sunpower Corporation Prevention of substrate edge plating in a fountain plating process
JP5256851B2 (en) 2008-05-29 2013-08-07 Ｔｄｋ株式会社 Magnet manufacturing method
GB0818403D0 (en) 2008-10-08 2008-11-12 Univ Leuven Kath Aqueous electrophoretic deposition
JP5262643B2 (en) 2008-12-04 2013-08-14 信越化学工業株式会社 Nd-based sintered magnet and manufacturing method thereof
FR2943688B1 (en) 2009-03-27 2012-07-20 Alchimer DEVICE AND METHOD FOR REALIZING ELECTROCHEMICAL REACTION ON A SURFACE OF A SEMICONDUCTOR SUBSTRATE
JP4919109B2 (en) 2009-04-03 2012-04-18 信越化学工業株式会社 Permanent magnet rotating machine and method for manufacturing permanent magnet segment for permanent magnet rotating machine
JP2011051851A (en) 2009-09-03 2011-03-17 Hitachi Chem Co Ltd Rare earth fluoride fine particle dispersion, method for producing the dispersion, method for producing rare earth fluoride thin film using the dispersion, method for producing polymer compound/rare earth fluoride composite film using the dispersion, and rare earth sintered magnet using the dispersion
JP5093215B2 (en) 2009-11-26 2012-12-12 トヨタ自動車株式会社 Method for producing sintered rare earth magnet
CN102103916B (en) 2009-12-17 2012-12-19 北京有色金属研究总院 Preparation method of neodymium iron boron magnet
EP2544199A4 (en) 2010-03-04 2017-11-29 TDK Corporation Sintered rare-earth magnet and motor
JP2011219844A (en) 2010-04-14 2011-11-04 Honda Motor Co Ltd Electrodeposition coating apparatus
JP5747543B2 (en) * 2011-02-14 2015-07-15 日立金属株式会社 RH diffusion source and method for producing RTB-based sintered magnet using the same
JP5863410B2 (en) 2011-11-16 2016-02-16 信越化学工業株式会社 Rotor and spoke type IPM permanent magnet rotating machine
CN102693828B (en) * 2012-06-21 2013-12-18 有研稀土新材料股份有限公司 Preparation process of Nd-Fe-B permanent magnet and magnet prepared by using same
EP2892064B1 (en) 2012-08-31 2017-09-27 Shin-Etsu Chemical Co., Ltd. Production method for rare earth permanent magnet
EP2892063B1 (en) 2012-08-31 2018-08-15 Shin-Etsu Chemical Co., Ltd. Production method for rare earth permanent magnet
EP2894645A4 (en) 2012-09-04 2016-07-20 Daikin Ind Ltd Electrolyte solution and electrochemical device
JP6191497B2 (en) * 2014-02-19 2017-09-06 信越化学工業株式会社 Electrodeposition apparatus and method for producing rare earth permanent magnet
JP6090589B2 (en) * 2014-02-19 2017-03-08 信越化学工業株式会社 Rare earth permanent magnet manufacturing method

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007053351A (en) * 2005-07-22 2007-03-01 Shin Etsu Chem Co Ltd Rare earth permanent magnet, its manufacturing method, and permanent magnet rotary machine
EP2894642A1 (en) * 2012-08-31 2015-07-15 Shin-Etsu Chemical Co., Ltd. Production method for rare earth permanent magnet

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
LI Q ET AL: "Electroplating of anticorrosive Ni-TiO2 composite coatings on sintered NdFeB permanent magnets", TRANSACTIONS OF THE INSTITUTE OF METAL FINISHING, MANEY PUBLISHING, BIRMINGHAM, GB, vol. 87, no. 3, 1 May 2009 (2009-05-01), pages 149 - 154, XP001524195, ISSN: 0020-2967, DOI: 10.1179/174591909X438901 *
MARKO SODERZNIK ET AL: "The grain-boundary diffusion process in Nd-Fe-B sintered magnets based on the electrophoretic deposition of DyF3", INTERMETALLICS, vol. 23, 27 December 2011 (2011-12-27), pages 158 - 162, XP055203877, ISSN: 0966-9795, DOI: 10.1016/j.intermet.2011.11.014 *

Also Published As

Publication number Publication date
KR102137726B1 (en) 2020-07-24
CN104584156A (en) 2015-04-29
JP6107545B2 (en) 2017-04-05
PH12015500446A1 (en) 2015-04-20
EP2892063A1 (en) 2015-07-08
EP2892063B1 (en) 2018-08-15
BR112015004500A2 (en) 2017-07-04
KR20150048232A (en) 2015-05-06
PH12015500446B1 (en) 2015-04-20
US20150211138A1 (en) 2015-07-30
TWI569294B (en) 2017-02-01
TW201419328A (en) 2014-05-16
JP2014063996A (en) 2014-04-10
CN104584156B (en) 2018-04-06
US10138564B2 (en) 2018-11-27
WO2014034849A1 (en) 2014-03-06
MY172195A (en) 2019-11-15

Similar Documents

Publication Publication Date Title
EP2722856B8 (en) Making method for rare earth sintered magnet
HUE053709T2 (en) Production method for rare earth permanent magnet
EP2894642A4 (en) Production method for rare earth permanent magnet
EP2618349A4 (en) Method for producing rare-earth magnet
EP2772926A4 (en) METHOD FOR PRODUCING NdFeB SINTERED MAGNET
EP2892064A4 (en) Production method for rare earth permanent magnet
EP3075874A4 (en) Low-b rare earth magnet
EP2836616A4 (en) Process for extraction of rare earth elements
EP2806438A4 (en) Method for producing r-t-b sintered magnet
EP2720790A4 (en) Methods of recovering rare earth elements
EP2738270A4 (en) Method for recovering rare earth element
EP2892063A4 (en) Production method for rare earth permanent magnet
EP2503563A4 (en) Permanent magnet and manufacturing method for permanent magnet
EP2827348A4 (en) Rare earth permanent magnet and method for producing rare earth permanent magnet
EP2685475A4 (en) Rare earth permanent magnet and method for manufacturing rare earth permanent magnet
SG11201400185XA (en) Method for forming magnetic field space
EP2763147A4 (en) Rare earth permanent magnet and production method for rare earth permanent magnet
EP2693451A4 (en) Sintered neodymium magnet
EP3067900A4 (en) Rare earth permanent magnet and method for manufacturing rare earth permanent magnet
EP2765682A4 (en) Method for forming magnetic field space
EP2811628A4 (en) Method for manufacturing magnet pieces for forming field-pole magnets
EP2800108A4 (en) Sintered neodymium magnet
EP2801985A4 (en) Neodymium-based rare-earth permanent magnet and process for producing same
EP2503562A4 (en) Permanent magnet and manufacturing method for permanent magnet
EP2781609A4 (en) Method for recovering rare earth element

Legal Events

Date Code Title Description
PUAI Public reference made under article 153(3) epc to a published international application that has entered the european phase

Free format text: ORIGINAL CODE: 0009012

17P Request for examination filed

Effective date: 20150317

AK Designated contracting states

Kind code of ref document: A1

Designated state(s): AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR

AX Request for extension of the european patent

Extension state: BA ME

DAX Request for extension of the european patent (deleted)
RA4 Supplementary search report drawn up and despatched (corrected)

Effective date: 20160322

RIC1 Information provided on ipc code assigned before grant

Ipc: B22F 3/24 20060101ALI20160316BHEP

Ipc: H01F 41/02 20060101AFI20160316BHEP

Ipc: H01F 1/057 20060101ALI20160316BHEP

Ipc: C22C 38/00 20060101ALI20160316BHEP

Ipc: H01F 1/08 20060101ALI20160316BHEP

17Q First examination report despatched

Effective date: 20171010

GRAP Despatch of communication of intention to grant a patent

Free format text: ORIGINAL CODE: EPIDOSNIGR1

INTG Intention to grant announced

Effective date: 20180227

GRAS Grant fee paid

Free format text: ORIGINAL CODE: EPIDOSNIGR3

GRAA (expected) grant

Free format text: ORIGINAL CODE: 0009210

AK Designated contracting states

Kind code of ref document: B1

Designated state(s): DE

RBV Designated contracting states (corrected)

Designated state(s): DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R096

Ref document number: 602013042139

Country of ref document: DE

REG Reference to a national code

Ref country code: DE

Ref legal event code: R097

Ref document number: 602013042139

Country of ref document: DE

PLBE No opposition filed within time limit

Free format text: ORIGINAL CODE: 0009261

STAA Information on the status of an ep patent application or granted ep patent

Free format text: STATUS: NO OPPOSITION FILED WITHIN TIME LIMIT

26N No opposition filed

Effective date: 20190516

PGFP Annual fee paid to national office [announced via postgrant information from national office to epo]

Ref country code: DE

Payment date: 20230705

Year of fee payment: 11